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perf(minifier): use ident hashes in label comparison (#26887)

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use `Ident` hashes when trying to fold simple labels
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Armano authored and GitHub committed 2026-09-21 14:53:51 +01:00
1 parent b0ebab9418
commit 57610b3f13
1 file changed
+4 -4
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crates/oxc_minifier/src/peephole/remove_dead_code.rs
+4 -4
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@@ -257,9 +257,9 @@ impl<'a> PeepholeOptimizations {
/// ```
pub fn try_fold_labeled(stmt: &mut Statement<'a>, ctx: &mut TraverseCtx<'a>) {
let Statement::LabeledStatement(s) = stmt else { return };
let id = s.label.name.as_str();
let id = s.label.name;
if ctx.options().drop_labels.contains(id) {
if ctx.options().drop_labels.contains(id.as_str()) {
let new_stmt = Statement::new_empty_statement(s.span, ctx);
ctx.replace_statement(stmt, new_stmt);
return;
@@ -269,8 +269,8 @@ impl<'a> PeepholeOptimizations {
// Check if we need to remove the whole block.
match &mut s.body {
Statement::BreakStatement(break_stmt)
if break_stmt.label.as_ref().is_some_and(|l| l.name.as_str() == id) => {}
Statement::BlockStatement(block) if block.body.first().is_some_and(|first| matches!(first, Statement::BreakStatement(break_stmt) if break_stmt.label.as_ref().is_some_and(|l| l.name.as_str() == id))) => {}
if break_stmt.label.as_ref().is_some_and(|l| l.name == id) => {}
Statement::BlockStatement(block) if block.body.first().is_some_and(|first| matches!(first, Statement::BreakStatement(break_stmt) if break_stmt.label.as_ref().is_some_and(|l| l.name == id))) => {}
Statement::EmptyStatement(_) => {
let new_stmt = Statement::new_empty_statement(s.span, ctx);
ctx.replace_statement(stmt, new_stmt);